<template>
	<view>
	<view class="search-box">
		<uni-search-bar :radius="100" cancel-button="none" @input="input"></uni-search-bar>		
		<view class="sugg-list">
			<view class="sugg-item" v-for="(item,index) in searchResults" :key="index" @click="gotoDetail(item.goods_id)">
				<view class="goods-name">{{item.goods_name}}</view>
				<uni-icons type="right" size="18"></uni-icons>
			</view>
		</view>
	</view>
	<view class="history-box" v-if="searchResults.length === 0">
		<view class="history-title">
			<text>搜索历史</text>
			<uni-icons type="trash-filled" size="18" @click="cleanHistory"></uni-icons>
		</view>
		<view class="history-list">
			<uni-tag :inverted="true" v-for="(item,index) in historys" :key="index" :text="item" type="success" @click="gotoGoodsList(item)" />
		</view>
	</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
			timer:null,
			kw:'',
			searchResults:[],
			historyList:[]
			};
		},
		onLoad() {
			this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
		},
		methods:{
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(()=>{
					this.kw = e
					this.getSearchList()
				},500)
			},
			async getSearchList(){
				if (this.kw==='') {
					this.searchResults = []
					return
				}
			const { data:res } = await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
			if ( res.meta.status !== 200) return uni.$showMeg()
			this.searchResults = res.message
			this.saveSearchHistory()
		},
		gotoDetail(item){
			uni.navigateTo({
				url:'/subpkg/goods_detail/goods_detail?goods_id='+item
			})
		},
		gotoGoodsList(kw){
			uni.navigateTo({
				url: '/subpkg/goods_list/goods_list?query=' + kw
			
			});
		},
		cleanHistory(){
			this.historyList = [] 
			uni.setStorageSync('kw','[]')
		},
		saveSearchHistory(){
			// this.historyList.push(this.kw)
			const set = new Set(this.historyList)
			set.delete(this.kw)
			set.add(this.kw)
			this.historyList = Array.from(set)
			uni.setStorageSync('kw',JSON.stringify(this.historyList))
		}
		},
		computed:{
			historys() {
				return [...this.historyList].reverse()
			}
		}
		}
</script>

<style lang="scss">
	.search-box{
		position: sticky;
		top: 0;
		z-index: 999;
	}
	.sugg-list{
		padding: 0 5px;
		.sugg-item{
			font-size: 12px;
			padding: 13px 0;
			border-bottom: 1px solid #efefef;
			display: flex;
			align-items: center;
			justify-content: space-between;
		
		.goods-name{
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			
		}
	}
	}
	.history-box{
		padding: 0 5px;
	
		.history-title{
			display: flex;
			justify-content: space-between;
			height: 40px;
			align-items: center;
			font-size: 12px;
		}
		.history-list{
			display: flex;
			flex-wrap: wrap;
		}
		.uni-tag {
			margin-top: 5px;
			margin-right: 5px;
    }
	}
</style>
